Binder CB150 CO2 Incubator uses a single-beam, infrared measuring cell which measures in differential mode - disturbance variables and aging phenomena in the measuring system are almost completely eliminated. A Super Precise System that offers high continued accuracy and selectivity between calibrations -mfg under ISO 9001 conditions and factory calibrated system offer digital readings and microprocessor controls. 150 liter interior volume in a lab bench top compact unit of exterior 680mm wide x 928mm high x 715mm deep.